2 * loader.c: Image Loader
5 * Paolo Molaro (lupus@ximian.com)
6 * Miguel de Icaza (miguel@ximian.com)
7 * Patrik Torstensson (patrik.torstensson@labs2.com)
9 * (C) 2001 Ximian, Inc.
10 * Copyright (C) 2002-2006 Novell, Inc.
12 * This file is used by the interpreter and the JIT engine to locate
13 * assemblies. Used to load AssemblyRef and later to resolve various
17 * This should keep track of the assembly versions that we are loading.
26 #include <mono/metadata/metadata.h>
27 #include <mono/metadata/image.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/tokentype.h>
30 #include <mono/metadata/cil-coff.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/metadata-internals.h>
33 #include <mono/metadata/loader.h>
34 #include <mono/metadata/class-internals.h>
35 #include <mono/metadata/debug-helpers.h>
36 #include <mono/metadata/reflection.h>
37 #include <mono/metadata/profiler.h>
38 #include <mono/utils/mono-logger.h>
39 #include <mono/metadata/exception.h>
41 MonoDefaults mono_defaults;
44 * This lock protects the hash tables inside MonoImage used by the metadata
45 * loading functions in class.c and loader.c.
47 static CRITICAL_SECTION loader_mutex;
51 * This TLS variable contains the last type load error encountered by the loader.
53 guint32 loader_error_thread_id;
58 InitializeCriticalSection (&loader_mutex);
60 loader_error_thread_id = TlsAlloc ();
64 mono_loader_cleanup (void)
66 TlsFree (loader_error_thread_id);
68 /*DeleteCriticalSection (&loader_mutex);*/
72 * Handling of type load errors should be done as follows:
74 * If something could not be loaded, the loader should call one of the
75 * mono_loader_set_error_XXX functions ()
76 * with the appropriate arguments, then return NULL to report the failure. The error
77 * should be propagated until it reaches code which can throw managed exceptions. At that
78 * point, an exception should be thrown based on the information returned by
79 * mono_loader_get_error (). Then the error should be cleared by calling
80 * mono_loader_clear_error ().
84 set_loader_error (MonoLoaderError *error)
86 TlsSetValue (loader_error_thread_id, error);
90 * mono_loader_set_error_assembly_load:
92 * Set the loader error for this thread.
95 mono_loader_set_error_assembly_load (const char *assembly_name, gboolean ref_only)
97 MonoLoaderError *error;
99 if (mono_loader_get_last_error ())
102 error = g_new0 (MonoLoaderError, 1);
103 error->kind = MONO_LOADER_ERROR_ASSEMBLY;
104 error->assembly_name = g_strdup (assembly_name);
105 error->ref_only = ref_only;
108 * This is not strictly needed, but some (most) of the loader code still
109 * can't deal with load errors, and this message is more helpful than an
113 g_warning ("Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.", assembly_name);
115 g_warning ("Could not load file or assembly '%s' or one of its dependencies.", assembly_name);
117 set_loader_error (error);
121 * mono_loader_set_error_type_load:
123 * Set the loader error for this thread.
126 mono_loader_set_error_type_load (const char *class_name, const char *assembly_name)
128 MonoLoaderError *error;
130 if (mono_loader_get_last_error ())
133 error = g_new0 (MonoLoaderError, 1);
134 error->kind = MONO_LOADER_ERROR_TYPE;
135 error->class_name = g_strdup (class_name);
136 error->assembly_name = g_strdup (assembly_name);
139 * This is not strictly needed, but some (most) of the loader code still
140 * can't deal with load errors, and this message is more helpful than an
143 g_warning ("The class %s could not be loaded, used in %s", class_name, assembly_name);
145 set_loader_error (error);
149 * mono_loader_set_error_method_load:
151 * Set the loader error for this thread. MEMBER_NAME should point to a string
155 mono_loader_set_error_method_load (const char *class_name, const char *member_name)
157 MonoLoaderError *error;
159 /* FIXME: Store the signature as well */
160 if (mono_loader_get_last_error ())
163 error = g_new0 (MonoLoaderError, 1);
164 error->kind = MONO_LOADER_ERROR_METHOD;
165 error->class_name = g_strdup (class_name);
166 error->member_name = member_name;
168 set_loader_error (error);
172 * mono_loader_set_error_field_load:
174 * Set the loader error for this thread. MEMBER_NAME should point to a string
178 mono_loader_set_error_field_load (MonoClass *klass, const char *member_name)
180 MonoLoaderError *error;
182 /* FIXME: Store the signature as well */
183 if (mono_loader_get_last_error ())
186 error = g_new0 (MonoLoaderError, 1);
187 error->kind = MONO_LOADER_ERROR_FIELD;
188 error->klass = klass;
189 error->member_name = member_name;
191 set_loader_error (error);
195 * mono_loader_get_last_error:
197 * Returns information about the last type load exception encountered by the loader, or
198 * NULL. After use, the exception should be cleared by calling mono_loader_clear_error.
201 mono_loader_get_last_error (void)
203 return (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
207 * mono_loader_clear_error:
209 * Disposes any loader error messages on this thread
212 mono_loader_clear_error (void)
214 MonoLoaderError *ex = (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
217 g_free (ex->class_name);
218 g_free (ex->assembly_name);
221 TlsSetValue (loader_error_thread_id, NULL);
226 * mono_loader_error_prepare_exception:
227 * @error: The MonoLoaderError to turn into an exception
229 * This turns a MonoLoaderError into an exception that can be thrown
230 * and resets the Mono Loader Error state during this process.
234 mono_loader_error_prepare_exception (MonoLoaderError *error)
236 MonoException *ex = NULL;
238 switch (error->kind) {
239 case MONO_LOADER_ERROR_TYPE: {
240 char *cname = g_strdup (error->class_name);
241 char *aname = g_strdup (error->assembly_name);
242 MonoString *class_name;
244 mono_loader_clear_error ();
246 class_name = mono_string_new (mono_domain_get (), cname);
248 ex = mono_get_exception_type_load (class_name, aname);
253 case MONO_LOADER_ERROR_METHOD: {
254 char *cname = g_strdup (error->class_name);
255 char *aname = g_strdup (error->member_name);
257 mono_loader_clear_error ();
258 ex = mono_get_exception_missing_method (cname, aname);
264 case MONO_LOADER_ERROR_FIELD: {
265 char *cnspace = g_strdup (*error->klass->name_space ? error->klass->name_space : "");
266 char *cname = g_strdup (error->klass->name);
267 char *cmembername = g_strdup (error->member_name);
270 mono_loader_clear_error ();
271 class_name = g_strdup_printf ("%s%s%s", cnspace, cnspace ? "." : "", cname);
273 ex = mono_get_exception_missing_field (class_name, cmembername);
276 g_free (cmembername);
281 case MONO_LOADER_ERROR_ASSEMBLY: {
285 msg = g_strdup_printf ("Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.", error->assembly_name);
287 msg = g_strdup_printf ("Could not load file or assembly '%s' or one of its dependencies.", error->assembly_name);
289 mono_loader_clear_error ();
290 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), error->assembly_name));
296 g_assert_not_reached ();
302 static MonoClassField*
303 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
304 MonoGenericContext *context)
307 MonoClassField *field;
308 MonoTableInfo *tables = image->tables;
310 guint32 nindex, class;
313 guint32 idx = mono_metadata_token_index (token);
315 if (image->dynamic) {
316 MonoClassField *result = mono_lookup_dynamic_token (image, token);
317 *retklass = result->parent;
321 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
322 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
323 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
325 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
327 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
328 mono_metadata_decode_blob_size (ptr, &ptr);
329 /* we may want to check the signature here... */
332 case MONO_MEMBERREF_PARENT_TYPEREF:
333 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
335 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
336 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
340 mono_class_init (klass);
343 field = mono_class_get_field_from_name (klass, fname);
345 case MONO_MEMBERREF_PARENT_TYPESPEC: {
346 /*guint32 bcols [MONO_TYPESPEC_SIZE];
350 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
351 bcols, MONO_TYPESPEC_SIZE);
352 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
353 len = mono_metadata_decode_value (ptr, &ptr);
354 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
356 klass = mono_class_from_mono_type (type);
357 mono_class_init (klass);
358 g_print ("type in sig: %s\n", klass->name);*/
359 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
360 mono_class_init (klass);
363 field = mono_class_get_field_from_name (klass, fname);
367 g_warning ("field load from %x", class);
372 mono_loader_set_error_field_load (klass, fname);
378 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
379 MonoGenericContext *context)
383 MonoClassField *field;
385 if (image->dynamic) {
386 MonoClassField *result = mono_lookup_dynamic_token (image, token);
387 *retklass = result->parent;
392 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
393 *retklass = field->parent;
394 mono_loader_unlock ();
397 mono_loader_unlock ();
399 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
400 field = field_from_memberref (image, token, retklass, context);
402 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
405 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
411 field = mono_class_get_field (k, token);
415 if (field && !field->parent->generic_class)
416 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
417 mono_loader_unlock ();
422 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
426 if (sig1->hasthis != sig2->hasthis ||
427 sig1->sentinelpos != sig2->sentinelpos)
430 for (i = 0; i < sig1->sentinelpos; i++) {
431 MonoType *p1 = sig1->params[i];
432 MonoType *p2 = sig2->params[i];
434 /*if (p1->attrs != p2->attrs)
437 if (!mono_metadata_type_equal (p1, p2))
441 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
447 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
448 MonoMethodSignature *sig, MonoClass *from_class)
452 mono_class_setup_methods (in_class);
453 for (i = 0; i < in_class->method.count; ++i) {
454 MonoMethod *m = in_class->methods [i];
456 if (!((fqname && !strcmp (m->name, fqname)) ||
457 (qname && !strcmp (m->name, qname)) || !strcmp (m->name, name)))
460 if (sig->call_convention == MONO_CALL_VARARG) {
461 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
464 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
469 if (i < in_class->method.count) {
470 mono_class_setup_methods (from_class);
471 g_assert (from_class->method.count == in_class->method.count);
472 return from_class->methods [i];
478 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
481 char *qname, *fqname, *class_name;
482 gboolean is_interface;
483 MonoMethod *result = NULL;
485 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
488 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
490 qname = g_strconcat (class_name, ".", name, NULL);
491 if (ic->name_space && ic->name_space [0])
492 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
496 class_name = qname = fqname = NULL;
499 g_assert (from_class);
500 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
504 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
507 g_assert (from_class->interface_count == in_class->interface_count);
508 for (i = 0; i < in_class->interface_count; i++) {
509 MonoClass *ic = in_class->interfaces [i];
510 MonoClass *from_ic = from_class->interfaces [i];
512 result = find_method_in_class (ic, name, qname, fqname, sig, from_ic);
517 in_class = in_class->parent;
518 from_class = from_class->parent;
520 g_assert (!in_class == !from_class);
523 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
532 static MonoMethodSignature*
533 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
535 MonoMethodSignature *res;
542 res = mono_metadata_signature_alloc (image, sig->param_count);
543 res->ret = mono_class_inflate_generic_type (sig->ret, context);
544 is_open = mono_class_is_open_constructed_type (res->ret);
545 for (i = 0; i < sig->param_count; ++i) {
546 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
548 is_open = mono_class_is_open_constructed_type (res->params [i]);
550 res->hasthis = sig->hasthis;
551 res->explicit_this = sig->explicit_this;
552 res->call_convention = sig->call_convention;
553 res->pinvoke = sig->pinvoke;
554 res->generic_param_count = sig->generic_param_count;
555 res->sentinelpos = sig->sentinelpos;
556 res->has_type_parameters = is_open;
557 res->is_inflated = 1;
561 static MonoMethodHeader*
562 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
564 MonoMethodHeader *res;
566 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
567 res->code = header->code;
568 res->code_size = header->code_size;
569 res->max_stack = header->max_stack;
570 res->num_clauses = header->num_clauses;
571 res->init_locals = header->init_locals;
572 res->num_locals = header->num_locals;
573 res->clauses = header->clauses;
574 for (i = 0; i < header->num_locals; ++i)
575 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
576 if (res->num_clauses) {
577 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
578 for (i = 0; i < header->num_clauses; ++i) {
579 MonoExceptionClause *clause = &res->clauses [i];
581 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
583 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
584 clause->data.catch_class = mono_class_from_mono_type (t);
591 * token is the method_ref or method_def token used in a call IL instruction.
594 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
596 int table = mono_metadata_token_table (token);
597 int idx = mono_metadata_token_index (token);
598 guint32 cols [MONO_MEMBERREF_SIZE];
599 MonoMethodSignature *sig, *prev_sig;
602 /* !table is for wrappers: we should really assign their own token to them */
603 if (!table || table == MONO_TABLE_METHOD)
604 return mono_method_signature (method);
606 if (table == MONO_TABLE_METHODSPEC) {
607 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
608 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
609 mono_method_signature (method));
610 g_assert (method->is_inflated);
612 return mono_method_signature (method);
615 if (method->klass->generic_class)
616 return mono_method_signature (method);
619 /* FIXME: This might be incorrect for vararg methods */
620 return mono_method_signature (method);
623 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
624 mono_loader_unlock ();
626 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
628 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
629 mono_metadata_decode_blob_size (ptr, &ptr);
630 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
633 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
635 /* Somebody got in before us */
636 /* FIXME: Free sig */
640 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
641 mono_loader_unlock ();
644 sig = inflate_generic_signature (image, sig, context);
650 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
652 return mono_method_get_signature_full (method, image, token, NULL);
655 /* this is only for the typespec array methods */
657 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
660 for (i = 0; i < klass->method.count; ++i) {
661 MonoMethod *method = klass->methods [i];
662 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
669 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context)
671 MonoClass *klass = NULL;
672 MonoMethod *method = NULL;
673 MonoTableInfo *tables = image->tables;
675 guint32 nindex, class;
677 MonoMethodSignature *sig;
680 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
681 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
682 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
683 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
684 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
686 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
689 case MONO_MEMBERREF_PARENT_TYPEREF:
690 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
692 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
693 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
694 mono_loader_set_error_method_load (name, mname);
699 case MONO_MEMBERREF_PARENT_TYPESPEC:
701 * Parse the TYPESPEC in the parent's context.
703 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
705 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
706 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
707 mono_loader_set_error_method_load (name, mname);
712 case MONO_MEMBERREF_PARENT_TYPEDEF:
713 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
715 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
716 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
717 mono_loader_set_error_method_load (name, mname);
722 case MONO_MEMBERREF_PARENT_METHODDEF:
723 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
727 /* This message leaks */
728 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
729 mono_loader_set_error_method_load ("", message);
735 mono_class_init (klass);
737 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
738 mono_metadata_decode_blob_size (ptr, &ptr);
740 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
745 case MONO_MEMBERREF_PARENT_TYPEREF:
746 case MONO_MEMBERREF_PARENT_TYPEDEF:
747 method = find_method (klass, NULL, mname, sig, klass);
750 case MONO_MEMBERREF_PARENT_TYPESPEC: {
754 type = &klass->byval_arg;
756 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
757 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
758 method = find_method (in_class, NULL, mname, sig, klass);
762 /* we're an array and we created these methods already in klass in mono_class_init () */
763 result = search_in_array_class (klass, mname, sig);
767 g_assert_not_reached ();
771 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
772 g_assert_not_reached ();
776 char *msig = mono_signature_get_desc (sig, FALSE);
777 char * class_name = mono_type_get_name (&klass->byval_arg);
778 GString *s = g_string_new (mname);
779 if (sig->generic_param_count)
780 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
781 g_string_append_printf (s, "(%s)", msig);
783 msig = g_string_free (s, FALSE);
786 "Missing method %s::%s in assembly %s, referenced in assembly %s",
787 class_name, msig, klass->image->name, image->name);
788 mono_loader_set_error_method_load (class_name, mname);
792 mono_metadata_free_method_signature (sig);
798 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
800 MonoMethod *method, *inflated;
801 MonoTableInfo *tables = image->tables;
802 MonoGenericContext *new_context = NULL;
803 MonoGenericMethod *gmethod;
804 MonoGenericContainer *container = NULL;
806 guint32 cols [MONO_METHODSPEC_SIZE];
807 guint32 token, nindex, param_count;
809 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
810 token = cols [MONO_METHODSPEC_METHOD];
811 nindex = token >> MONO_METHODDEFORREF_BITS;
813 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
815 mono_metadata_decode_value (ptr, &ptr);
817 param_count = mono_metadata_decode_value (ptr, &ptr);
818 g_assert (param_count);
821 * Be careful with the two contexts here:
823 * ----------------------------------------
825 * static void Hello<T> (S s, T t) { }
827 * static void Test<U> (U u) {
828 * Foo<U>.Hello<string> (u, "World");
831 * ----------------------------------------
833 * Let's assume we're currently JITing Foo<int>.Test<long>
834 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
836 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
837 * (MONO_MEMBERREF_PARENT_TYPESPEC).
839 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
840 * context (S=int, U=long) to get the correct `Foo<long>'.
842 * After that, we parse the memberref signature in the new context
843 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
846 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
847 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
849 method = method_from_memberref (image, nindex, context);
851 method = mono_get_inflated_method (method);
853 container = method->generic_container;
854 g_assert (container);
856 gmethod = g_new0 (MonoGenericMethod, 1);
857 if (method->klass->generic_class)
858 gmethod->class_inst = method->klass->generic_class->inst;
859 gmethod->container = container;
861 new_context = g_new0 (MonoGenericContext, 1);
862 new_context->gmethod = gmethod;
863 /* FIXME: Is this correct? */
864 if (container->parent)
865 new_context->class_inst = container->parent->context.class_inst;
868 * When parsing the methodspec signature, we're in the old context again:
870 * ----------------------------------------
872 * static void Hello<T> (T t) { }
874 * static void Test<U> (U u) {
878 * ----------------------------------------
880 * Let's assume we're currently JITing "Foo.Test<float>".
882 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
883 * signature is "<!!0>". This means that we must instantiate the method type parameter
884 * `T' from the new method with the method type parameter `U' from the current context;
885 * ie. instantiate the method as `Foo.Hello<float>.
888 gmethod->inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
890 if (context && gmethod->inst->is_open)
891 gmethod->inst = mono_metadata_inflate_generic_inst (gmethod->inst, context);
893 if (!container->method_hash)
894 container->method_hash = g_hash_table_new (
895 (GHashFunc)mono_metadata_generic_method_hash, (GEqualFunc)mono_metadata_generic_method_equal);
897 inflated = g_hash_table_lookup (container->method_hash, gmethod);
900 g_free (new_context);
904 context = new_context;
906 mono_stats.generics_metadata_size += sizeof (MonoGenericMethod) +
907 sizeof (MonoGenericContext) + param_count * sizeof (MonoType);
909 inflated = mono_class_inflate_generic_method_full (method, method->klass, new_context);
910 g_hash_table_insert (container->method_hash, gmethod, inflated);
915 typedef struct MonoDllMap MonoDllMap;
924 static GHashTable *global_dll_map;
927 mono_dllmap_lookup_hash (GHashTable *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
928 MonoDllMap *map, *tmp;
937 map = g_hash_table_lookup (dll_map, dll);
939 mono_loader_unlock ();
942 *rdll = map->target? map->target: dll;
944 for (tmp = map->next; tmp; tmp = tmp->next) {
945 if (strcmp (func, tmp->name) == 0) {
949 mono_loader_unlock ();
954 mono_loader_unlock ();
959 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
962 if (assembly && assembly->dll_map) {
963 res = mono_dllmap_lookup_hash (assembly->dll_map, dll, func, rdll, rfunc);
967 return mono_dllmap_lookup_hash (global_dll_map, dll, func, rdll, rfunc);
971 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
972 MonoDllMap *map, *entry;
973 GHashTable *dll_map = NULL;
979 global_dll_map = g_hash_table_new (g_str_hash, g_str_equal);
980 dll_map = global_dll_map;
982 if (!assembly->dll_map)
983 assembly->dll_map = g_hash_table_new (g_str_hash, g_str_equal);
984 dll_map = assembly->dll_map;
987 map = g_hash_table_lookup (dll_map, dll);
989 map = g_new0 (MonoDllMap, 1);
990 map->dll = g_strdup (dll);
992 map->target = g_strdup (tdll);
993 g_hash_table_insert (dll_map, map->dll, map);
996 entry = g_new0 (MonoDllMap, 1);
997 entry->name = g_strdup (func);
999 entry->target = g_strdup (tfunc);
1000 if (tdll && map->target && strcmp (map->target, tdll))
1001 entry->dll = g_strdup (tdll);
1002 entry->next = map->next;
1006 mono_loader_unlock ();
1010 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1012 MonoImage *image = method->klass->image;
1013 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1014 MonoTableInfo *tables = image->tables;
1015 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1016 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1017 guint32 im_cols [MONO_IMPLMAP_SIZE];
1018 guint32 scope_token;
1019 const char *import = NULL;
1020 const char *orig_scope;
1021 const char *new_scope;
1022 char *full_name, *file_name;
1024 GModule *gmodule = NULL;
1026 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1029 return piinfo->addr;
1031 if (method->klass->image->dynamic) {
1032 MonoReflectionMethodAux *method_aux =
1033 g_hash_table_lookup (
1034 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1038 import = method_aux->dllentry;
1039 orig_scope = method_aux->dll;
1042 if (!piinfo->implmap_idx)
1045 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1047 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1048 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1049 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1050 orig_scope = mono_metadata_string_heap (image, scope_token);
1053 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1055 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1056 "DllImport attempting to load: '%s'.", new_scope);
1063 /* we allow a special name to dlopen from the running process namespace */
1064 if (strcmp (new_scope, "__Internal") == 0)
1065 gmodule = g_module_open (NULL, G_MODULE_BIND_LAZY);
1068 * Try loading the module using a variety of names
1070 for (i = 0; i < 4; ++i) {
1073 /* Try the original name */
1074 file_name = g_strdup (new_scope);
1077 /* Try trimming the .dll extension */
1078 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1079 file_name = g_strdup (new_scope);
1080 file_name [strlen (new_scope) - 4] = '\0';
1086 if (strstr (new_scope, "lib") != new_scope) {
1087 file_name = g_strdup_printf ("lib%s", new_scope);
1093 #ifndef PLATFORM_WIN32
1094 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1095 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1096 !g_ascii_strcasecmp ("user32", new_scope) ||
1097 !g_ascii_strcasecmp ("kernel", new_scope)) {
1098 file_name = g_strdup ("libMonoSupportW.so");
1102 #ifndef PLATFORM_WIN32
1108 full_name = g_module_build_path (NULL, file_name);
1109 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1110 "DllImport loading location: '%s'.", full_name);
1111 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
1113 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1114 "DllImport error loading library: '%s'.",
1121 full_name = g_module_build_path (".", file_name);
1122 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1123 "DllImport loading library: '%s'.", full_name);
1124 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
1126 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1127 "DllImport error loading library '%s'.",
1134 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1135 "DllImport loading: '%s'.", file_name);
1136 gmodule=g_module_open (file_name, G_MODULE_BIND_LAZY);
1138 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1139 "DllImport error loading library '%s'.",
1151 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1152 "DllImport unable to load library '%s'.",
1156 *exc_class = "DllNotFoundException";
1157 *exc_arg = new_scope;
1162 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1163 "Searching for '%s'.", import);
1165 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1166 g_module_symbol (gmodule, import, &piinfo->addr);
1168 char *mangled_name = NULL, *mangled_name2 = NULL;
1171 int mangle_param_count;
1172 #ifdef PLATFORM_WIN32
1177 * Search using a variety of mangled names
1179 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1180 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1181 gboolean need_param_count = FALSE;
1182 #ifdef PLATFORM_WIN32
1183 if (mangle_stdcall > 0)
1184 need_param_count = TRUE;
1186 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1191 mangled_name = (char*)import;
1192 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1193 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1194 /* Try the mangled name first */
1195 if (mangle_charset == 0)
1196 mangled_name = g_strconcat (import, "W", NULL);
1198 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1199 #ifdef PLATFORM_WIN32
1200 if (mangle_charset == 0)
1201 mangled_name = g_strconcat (import, "W", NULL);
1203 /* Try the mangled name last */
1204 if (mangle_charset == 1)
1205 mangled_name = g_strconcat (import, "A", NULL);
1208 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1210 /* Try the mangled name last */
1211 if (mangle_charset == 1)
1212 mangled_name = g_strconcat (import, "A", NULL);
1216 #ifdef PLATFORM_WIN32
1217 if (mangle_param_count == 0)
1218 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1220 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1221 param_count = mangle_param_count;
1223 /* Try the stdcall mangled name */
1225 * gcc under windows creates mangled names without the underscore, but MS.NET
1226 * doesn't support it, so we doesn't support it either.
1228 if (mangle_stdcall == 1)
1229 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1231 mangled_name2 = mangled_name;
1233 mangled_name2 = mangled_name;
1236 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1237 "Probing '%s'.", mangled_name2);
1239 g_module_symbol (gmodule, mangled_name2, &piinfo->addr);
1242 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1243 "Found as '%s'.", mangled_name2);
1245 if (mangled_name != mangled_name2)
1246 g_free (mangled_name2);
1247 if (mangled_name != import)
1248 g_free (mangled_name);
1254 if (!piinfo->addr) {
1256 *exc_class = "EntryPointNotFoundException";
1261 return piinfo->addr;
1265 mono_get_shared_generic_method (MonoGenericContainer *container)
1267 MonoGenericMethod *gmethod = g_new0 (MonoGenericMethod, 1);
1268 gmethod->container = container;
1269 gmethod->class_inst = container->context.class_inst;
1270 gmethod->inst = mono_get_shared_generic_inst (container);
1276 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1277 MonoGenericContext *context)
1280 int table = mono_metadata_token_table (token);
1281 int idx = mono_metadata_token_index (token);
1282 MonoTableInfo *tables = image->tables;
1283 MonoGenericContainer *generic_container = NULL, *container = NULL;
1284 const char *sig = NULL;
1286 guint32 cols [MONO_TYPEDEF_SIZE];
1289 return mono_lookup_dynamic_token (image, token);
1291 if (table != MONO_TABLE_METHOD) {
1292 if (table == MONO_TABLE_METHODSPEC)
1293 return method_from_methodspec (image, context, idx);
1294 if (table != MONO_TABLE_MEMBERREF)
1295 g_print("got wrong token: 0x%08x\n", token);
1296 g_assert (table == MONO_TABLE_MEMBERREF);
1297 result = method_from_memberref (image, idx, context);
1302 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1304 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1305 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1306 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1308 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1310 mono_stats.method_count ++;
1313 guint32 type = mono_metadata_typedef_from_method (image, token);
1314 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1320 result->klass = klass;
1321 result->flags = cols [2];
1322 result->iflags = cols [1];
1323 result->token = token;
1324 result->name = mono_metadata_string_heap (image, cols [3]);
1326 container = klass->generic_container;
1327 generic_container = mono_metadata_load_generic_params (image, token, container);
1328 if (generic_container) {
1329 MonoGenericContext *context;
1331 generic_container->owner.method = result;
1332 context = &generic_container->context;
1334 context->class_inst = container->context.class_inst;
1335 context->gmethod = mono_get_shared_generic_method (generic_container);
1337 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1339 for (i = 0; i < generic_container->type_argc; i++)
1340 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1342 container = generic_container;
1345 if (!sig) /* already taken from the methodref */
1346 sig = mono_metadata_blob_heap (image, cols [4]);
1347 size = mono_metadata_decode_blob_size (sig, &sig);
1349 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1350 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1351 result->string_ctor = 1;
1352 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1353 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1354 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1356 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1357 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1360 /* FIXME: lazyness for generics too, but how? */
1361 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1362 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1363 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1364 gpointer loc = mono_image_rva_map (image, cols [0]);
1366 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1369 result->generic_container = generic_container;
1375 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1377 return mono_get_method_full (image, token, klass, NULL);
1381 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1382 MonoGenericContext *context)
1386 /* We do everything inside the lock to prevent creation races */
1388 mono_loader_lock ();
1390 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1391 mono_loader_unlock ();
1395 result = mono_get_method_from_token (image, token, klass, context);
1397 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1399 if (!(result && result->is_inflated))
1400 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1402 mono_loader_unlock ();
1408 * mono_get_method_constrained:
1410 * This is used when JITing the `constrained.' opcode.
1412 * This returns two values: the contrained method, which has been inflated
1413 * as the function return value; And the original CIL-stream method as
1414 * declared in cil_method. The later is used for verification.
1417 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1418 MonoGenericContext *context, MonoMethod **cil_method)
1420 MonoMethod *method, *result;
1421 MonoClass *ic = NULL;
1422 MonoGenericContext *class_context = NULL, *method_context = NULL;
1423 MonoMethodSignature *sig;
1425 mono_loader_lock ();
1427 *cil_method = mono_get_method_from_token (image, token, NULL, context);
1429 mono_loader_unlock ();
1433 mono_class_init (constrained_class);
1434 method = mono_get_inflated_method (*cil_method);
1435 sig = mono_method_signature (method);
1437 if (method->is_inflated && sig->generic_param_count) {
1438 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1439 sig = mono_method_signature (imethod->declaring);
1440 method_context = mono_method_get_context (method);
1443 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1446 if (constrained_class->generic_class)
1447 class_context = mono_class_get_context (constrained_class);
1449 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1451 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1452 method->klass->name, method->name, image->name, token);
1453 mono_loader_unlock ();
1458 result = mono_class_inflate_generic_method (result, class_context);
1460 result = mono_class_inflate_generic_method (result, method_context);
1462 mono_loader_unlock ();
1467 mono_free_method (MonoMethod *method)
1469 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1472 if (method->signature) {
1474 * FIXME: This causes crashes because the types inside signatures and
1475 * locals are shared.
1477 /* mono_metadata_free_method_signature (method->signature); */
1478 /* g_free (method->signature); */
1481 if (method->dynamic) {
1482 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1484 g_free ((char*)method->name);
1485 if (mw->method.header)
1486 g_free ((char*)mw->method.header->code);
1487 g_free (mw->method_data);
1490 if (method->dynamic && !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && ((MonoMethodNormal *)method)->header) {
1492 /* mono_metadata_free_mh (((MonoMethodNormal *)method)->header); */
1493 g_free (((MonoMethodNormal*)method)->header);
1496 if (method->dynamic)
1501 mono_method_get_param_names (MonoMethod *method, const char **names)
1504 MonoClass *klass = method->klass;
1505 MonoTableInfo *methodt;
1506 MonoTableInfo *paramt;
1509 if (!mono_method_signature (method)->param_count)
1511 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1514 if (klass->generic_class || klass->rank) /* copy the names later */
1517 mono_class_init (klass);
1519 if (klass->image->dynamic) {
1520 MonoReflectionMethodAux *method_aux =
1521 g_hash_table_lookup (
1522 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1523 if (method_aux && method_aux->param_names) {
1524 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1525 if (method_aux->param_names [i + 1])
1526 names [i] = method_aux->param_names [i + 1];
1531 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1532 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1533 idx = mono_method_get_index (method);
1535 guint32 cols [MONO_PARAM_SIZE];
1538 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1540 if (idx < methodt->rows)
1541 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1543 lastp = paramt->rows + 1;
1544 for (i = param_index; i < lastp; ++i) {
1545 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1546 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1547 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1554 mono_method_get_param_token (MonoMethod *method, int index)
1556 MonoClass *klass = method->klass;
1557 MonoTableInfo *methodt;
1560 if (klass->generic_class)
1561 g_assert_not_reached ();
1563 mono_class_init (klass);
1565 if (klass->image->dynamic) {
1566 g_assert_not_reached ();
1569 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1570 idx = mono_method_get_index (method);
1572 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1574 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1581 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1584 MonoClass *klass = method->klass;
1585 MonoTableInfo *methodt;
1586 MonoTableInfo *paramt;
1589 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1592 if (method->klass->image->dynamic) {
1593 MonoReflectionMethodAux *method_aux =
1594 g_hash_table_lookup (
1595 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1596 if (method_aux && method_aux->param_marshall) {
1597 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1598 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1599 if (dyn_specs [i]) {
1600 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1601 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1607 mono_class_init (klass);
1609 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1610 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1611 idx = mono_method_get_index (method);
1613 guint32 cols [MONO_PARAM_SIZE];
1614 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1616 if (idx < methodt->rows)
1617 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1619 lastp = paramt->rows + 1;
1621 for (i = param_index; i < lastp; ++i) {
1622 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1624 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1626 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1628 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1637 mono_method_has_marshal_info (MonoMethod *method)
1640 MonoClass *klass = method->klass;
1641 MonoTableInfo *methodt;
1642 MonoTableInfo *paramt;
1645 if (method->klass->image->dynamic) {
1646 MonoReflectionMethodAux *method_aux =
1647 g_hash_table_lookup (
1648 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1649 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1651 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1658 mono_class_init (klass);
1660 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1661 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1662 idx = mono_method_get_index (method);
1664 guint32 cols [MONO_PARAM_SIZE];
1665 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1667 if (idx + 1 < methodt->rows)
1668 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1670 lastp = paramt->rows + 1;
1672 for (i = param_index; i < lastp; ++i) {
1673 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1675 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1684 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1687 g_assert (method != NULL);
1688 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1690 data = ((MonoMethodWrapper *)method)->method_data;
1691 g_assert (data != NULL);
1692 g_assert (id <= GPOINTER_TO_UINT (*data));
1697 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1698 g_error ("stack walk not installed");
1701 static MonoStackWalkImpl stack_walk = default_stack_walk;
1704 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1706 stack_walk (func, TRUE, user_data);
1710 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1712 stack_walk (func, FALSE, user_data);
1716 mono_install_stack_walk (MonoStackWalkImpl func)
1722 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1724 MonoMethod **dest = data;
1726 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1732 mono_method_get_last_managed (void)
1734 MonoMethod *m = NULL;
1735 stack_walk (last_managed, FALSE, &m);
1740 mono_loader_lock (void)
1742 EnterCriticalSection (&loader_mutex);
1746 mono_loader_unlock (void)
1748 LeaveCriticalSection (&loader_mutex);
1752 * mono_method_signature:
1754 * Return the signature of the method M. On failure, returns NULL.
1756 MonoMethodSignature*
1757 mono_method_signature (MonoMethod *m)
1763 gboolean can_cache_signature;
1764 MonoGenericContainer *container;
1768 return m->signature;
1770 mono_loader_lock ();
1773 mono_loader_unlock ();
1774 return m->signature;
1777 if (m->is_inflated) {
1778 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1779 MonoMethodSignature *signature;
1780 /* the lock is recursive */
1781 signature = mono_method_signature (imethod->declaring);
1782 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1783 mono_loader_unlock ();
1784 return m->signature;
1787 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1788 idx = mono_metadata_token_index (m->token);
1789 img = m->klass->image;
1791 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1793 g_assert (!m->klass->generic_class);
1794 container = m->generic_container;
1796 container = m->klass->generic_container;
1798 /* Generic signatures depend on the container so they cannot be cached */
1799 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1800 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1802 /* If the method has parameter attributes, that can modify the signature */
1803 pattrs = mono_metadata_get_param_attrs (img, idx);
1805 can_cache_signature = FALSE;
1809 if (can_cache_signature)
1810 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1812 if (!m->signature) {
1813 const char *sig_body;
1815 size = mono_metadata_decode_blob_size (sig, &sig_body);
1817 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1818 if (!m->signature) {
1819 mono_loader_unlock ();
1823 if (can_cache_signature)
1824 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1827 /* Verify metadata consistency */
1828 if (m->signature->generic_param_count) {
1829 if (!container || !container->is_method)
1830 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1831 if (container->type_argc != m->signature->generic_param_count)
1832 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1833 m->signature->generic_param_count, container->type_argc);
1834 } else if (container && container->is_method && container->type_argc)
1835 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1837 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1838 m->signature->pinvoke = 1;
1839 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1840 MonoCallConvention conv = 0;
1841 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1842 m->signature->pinvoke = 1;
1844 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1845 case 0: /* no call conv, so using default */
1846 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1847 conv = MONO_CALL_DEFAULT;
1849 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1852 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1853 conv = MONO_CALL_STDCALL;
1855 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1856 conv = MONO_CALL_THISCALL;
1858 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1859 conv = MONO_CALL_FASTCALL;
1861 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1862 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1864 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1865 g_assert_not_reached ();
1867 m->signature->call_convention = conv;
1870 mono_loader_unlock ();
1871 return m->signature;
1875 mono_method_get_name (MonoMethod *method)
1877 return method->name;
1881 mono_method_get_class (MonoMethod *method)
1883 return method->klass;
1887 mono_method_get_token (MonoMethod *method)
1889 return method->token;
1893 mono_method_get_header (MonoMethod *method)
1899 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1901 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
1905 if (G_LIKELY (mn->header))
1911 mono_loader_lock ();
1914 mono_loader_unlock ();
1918 if (method->is_inflated) {
1919 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1920 MonoMethodHeader *header;
1921 /* the lock is recursive */
1922 header = mono_method_get_header (imethod->declaring);
1923 mn->header = inflate_generic_header (header, mono_method_get_context (method));
1924 mono_loader_unlock ();
1928 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1929 idx = mono_metadata_token_index (method->token);
1930 img = method->klass->image;
1931 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1932 loc = mono_image_rva_map (img, rva);
1936 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1938 mono_loader_unlock ();
1943 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1946 *iflags = method->iflags;
1947 return method->flags;
1951 * Find the method index in the metadata methodDef table.
1954 mono_method_get_index (MonoMethod *method) {
1955 MonoClass *klass = method->klass;
1959 return mono_metadata_token_index (method->token);
1961 mono_class_setup_methods (klass);
1962 for (i = 0; i < klass->method.count; ++i) {
1963 if (method == klass->methods [i]) {
1964 if (klass->image->uncompressed_metadata)
1965 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
1967 return klass->method.first + i + 1;